QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem901871
USGS iscgem901871
22 Mar 1939, 07:21
133 km SE of Pangai, Tonga
A magnitude 6.2 mw earthquake at 15 km depth.
Published location
Where is 133 km SE of Pangai, Tonga?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-20.636000, -173.413000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Catalog fields and provenance
Event ID
iscgem901871
Coordinates
-20.636, -173.413
Network
iscgem
Significance
597